How any 4-letters words, with or without meaning, can be formed out of the letters in the word LOGARITHMS, if repetition of letters is not allowed?

Find the number of 4 letter words, with or without meaning, which can be formed out of the letters of the word ROSE, where the repetition of the letters is not allowed.

Find the number 4 letter words, with or without meaning, which can be formed out of the letters of the word MAKE, where the repetition of the letters is not allowed.

How many words, with or without meaning, can be formed using all the letters of the word EQUATION, using each letter exactly once?

How many words (with or without dictionary meaning ) can be made from the letters of the word MONDAY, assuming that no letter is repeated , if

How many words, with or without meaning , can be made from the letters of the word MONDAY, assuming that no letters is repeated , if (i) 4 letters are used at a time (ii) all letters are used at a time

The number of words that can be formed out of the letters of the word " COMMITTEE"

How many words, with or without meaning, can be formed using all the letters of the word EQUATION at a time so that the vowels and consonants occur together?